Highway 318 north of Lambrook closes for culvert replacement

Highway 318 north of Lambrook is closed around the clock between County Road 607/470 and County Road 612/444, cutting off through traffic while crews replace a culvert. The closure runs from 8 a.m. Monday, June 22, through 5:30 p.m. Wednesday, June 24, weather permitting, and only local traffic is being allowed on either side of the work zone.

For Phillips County, the impact reaches beyond one stretch of pavement. The shutdown affects commuters, farm traffic, emergency response routes and trips tied to school, church and service stops near Lambrook, where even a short detour can ripple through daily travel in the northern part of the county. Arkansas Department of Transportation has marked the area with digital message boards, barrels, barricades and signage as it manages the closure.

The project puts a spotlight on how much of rural Phillips County depends on a small number of direct routes. Highway 318 is one of those links, with published route descriptions showing one segment from Highway 85 at Oneida to Highway 44 and another from Highway 1 to Highway 20. A portion between Watkins Corner and Lambrook is also part of the Great River Road National Scenic Byway, adding another layer of importance to a road that serves both local and regional movement.

ARDOT’s Roadway Design Division says its Hydraulics Section provides hydraulic analyses for bridges and bridge-length culverts in highway construction projects, which helps explain why a culvert job can require a full closure instead of a lane shift. In this case, the agency chose an around-the-clock shutdown rather than keeping traffic squeezed through a narrowed corridor, a move that should reduce conflicts for crews working on the drainage structure.

Drivers looking for current conditions are being directed to IDrive Arkansas, the state platform for up-to-date road closures, incident reports and winter weather road conditions. For Lambrook, an unincorporated community in Phillips County, the closure is a reminder that routine drainage work can have immediate consequences for getting across the county and back home again.